#zero_day

The recently disclosed critical Microsoft SharePoint vulnerability has been under exploitation as early as July 7, 2025, according to findings from Check Point Research. The cybersecurity company said it observed first exploitation attempts targeting an unnamed major Western government, with the activity intensifying on July 18 and 19, spanning government, telecommunications, and software

On Sunday, July 20, Microsoft Corp. issued an emergency security update for a vulnerability in SharePoint Server that is actively being exploited to compromise vulnerable organizations. The patch comes amid reports that malicious hackers have used the Sharepoint flaw to breach U.S. federal and state agencies, universities, and energy companies.

Malicious actors already have already pounced on the zero-day vulnerability, tracked as CVE-2025-53770, to compromise US government agencies and other businesses in ongoing and widespread attacks.

Even in well-secured environments, attackers are getting in—not with flashy exploits, but by quietly taking advantage of weak settings, outdated encryption, and trusted tools left unprotected. These attacks don’t depend on zero-days. They work by staying unnoticed—slipping through the cracks in what we monitor and what we assume is safe. What once looked suspicious now blends in, thanks to

A list of topics we covered in the week of July 14 to July 20 of 2025

A critical security vulnerability in Microsoft SharePoint Server has been weaponized as part of an "active, large-scale" exploitation campaign. The zero-day flaw, tracked as CVE-2025-53770 (CVSS score: 9.8), has been described as a variant of CVE-2025-49706 (CVSS score: 6.3), a spoofing bug in Microsoft SharePoint Server that was addressed by the tech giant as part of its July 2025 Patch Tuesday

Plus: Secret IRS data-sharing with ICE, a 20-year-old hackable vulnerability in train brakes, and more.

Cybersecurity researchers have disclosed details of a new malware called MDifyLoader that has been observed in conjunction with cyber attacks exploiting security flaws in Ivanti Connect Secure (ICS) appliances. According to a report published by JPCERT/CC today, the threat actors behind the exploitation of CVE-2025-0282 and CVE-2025-22457 in intrusions observed between December 2024 and July

A new report traces the history of the early wave of Chinese hackers who became the backbone of the state's espionage apparatus.

Google has released an update for its Chrome browser to patch six security vulnerabilities including one zero-day.